Gate-roller



(NoModeLi v F. W. HOLBR'OOK.

Gate-Roller.

No. 228,354. Patented June 1-, I880.

aug

NJETERS. PH rn LnucGRAPnEn. WASHINGTON n c.

UNITED STATES AA'IEN'I Orrren.

FRANCIS W. HOLBROOK, OF MINNEAPOLIS, MINNESOTA.

GATE-ROLLER.

SPECIFICATION forming part of Letters Patent 1\To. 228,354, dated June 1, 1880.

Application filed MZLIGII 1c, 1880. (No model.)

To all whom it may concern:

Be it known that I, FRANCIS WAYLAND HoLBRooK, of Minneapolis, in the county of I-Iennepin and State of Minnesota, have invented a new and useful Gate-Roller, of which the following is a specification.

This invention relates to that class of gaterollers which are pivoted upon a bolt screwed into the corner of a post, and upon which a gate is adapted to be run back and forth and swung around at right angles to the fence; and it consists in a collar pivoted to the end of the screw-bolt, and upon which the pulley revolves, and in the method of arranging the different parts, with or without friction-roll ers, as hereinafter set forth. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure I is a side elevation, and Fig. II is a plan view, of a gate and a portion of a fence, showing my roller attached thereto. Fig. III is afront elevation, and Fig. IV a sectional side elevation on the line a; 00 of Fig. III, of one of the rollers enlarged and detached. Fig. V is a sectional side elevation 011 the line a z of Fig. VI; and Fig.VIis a front elevation of one of therollers detached and enlarged, showing a variation in the method of construction; Figs.VII, VIII, and IX, perspective views, enlarged, of the revolving collar, the pivotal pin orbolt, and the clamping-block detached.

A is the gate; B, the front post, and B the rear or hinge post. 0 is a bolt arranged to be screwed or otherwise secured to the corner of the hinge-post B in the usual manner, and provided at its outer end with two pivots, a a, at right angles thereto, and adapted to fit into sockets b in the bottom of a round collar, 0. d is a block or clamp, having its lower side, a, hollowed out to fit over the outer end of the bolt 0 and the outer sides of the pivots a a, and made large enough to fill up the space between the sockets I) and top of the collar 0, the sockets and clamp thus holding the pivots between them, and enabling the bolt to be turned backand forth at an angle of forty-five degrees, as shown in Figs. II and V.

The collar 0 fits into a rim, 6, forming part of the shell D of the roller, which thus forms a socket for it, while a small shoulder, g, at the bottom and a cover, E, at the top hold it in place and prevent end movement. By this arrangement the outer shell or pulley, D, is free to revolve upon the collar 0, while the latter maybe oscillated upon the bolt G, and with it the roller D, to give the required movement to the gate.

Figs. V andVI show the same arrangement with small friction-rollers h /t its set in the shell D, so that the collar 0 can revolve in contact with them, and thus reduce the friction.

and cause the pulley to run more smoothly. Any desired number of these rollers it maybe used. 1

In operating the gate the bolt is screwed into the post and set with the pivots a a in a perpendicular line; then the collar 0 and clamp d and the shell D and its cover E are placed in position thereon. The gate is then placed upon the roller, as shown in Figs. I and 11.

When it is desired to open the gate, it is run back one-half (9 its length, or until it will just balance on the pulley, and then swung around at right angles, as shown by dotted lines at i in Fig. 2. By this arrangement a large surface is i'ormed by the collar cfor the pulley to run on, thus not only rendering it very strong, but causing it to run more steadily, and be less liable to become disarranged or wabble sidewise.

The collar c'being made in one piece, no joints occur to catch upon or be cramped against the sides of the inner rim, 6, or the frlction-rollers It.

What I claim as new is 1. The combination, with the shell or rim D, of the pulley having the inner socket or rim 6 of the collar 0 in one piece, and having the sockets b b and clamp (1, adapted to receive the pivots a a on the bolt 0, as set forth.

2. The combination and arrangement of the shell D, having friction-rollers h h M, collar 0, having sockets b b and clamp d, and the bolt 0, having the pivots a a,substant1ally as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

FRANCIS WAYLAND HOLBROOK.

Witnesses:

O. N. WooDwARn, EDWARD RorERT. 

